Celtic striker Cillian Sheridan has signed a new three-year contract after making an instant impact on his debut.
Sheridan made his debut against Inverness on Sunday
The 18-year-old came off the bench to set up Kenny Miller's winning goal at Inverness on Sunday, which sealed a place in the Scottish Cup semi-finals.
"I will be working hard to try to ensure that I can make many more appearances for the Celtic first team," Sheridan told the club website.
"I know it will be difficult but I will certainly be doing all I can."
Celtic manager Gordon Strachan believes the Irish teenager can make a long-term impact.
"We are delighted to have secured Cillian on this long-term contract," he said.
"He is a talented player and, like other players at the club, he has the potential to achieve a great deal in the game.
"We will do all we can to ensure that Cillian and these other players realise their potential."